convio_groups.php

		/* get_group_members($group_id)
 		 * ---------------------------------------------
 		 * return multidimensional array of constituents
 		 * in a particular group including address, contact
		 * information.
		 *
		 */
		function get_group_members($group_id) {

			$this->convio_data['group_id'] = $group_id;

			$responses = $this->convio_api->call('SRConsAPI_getGroupMembers', $this->convio_data);

			foreach($responses as $response) {
				
				$i = 0;

				foreach($response->member as $member) {

					$constituent[$i]['id'] = $member->cons_id;
					$constituent[$i]['street1'] = $member->primary_address->street1;
					$constituent[$i]['street2'] = $member->primary_address->street2;
					$constituent[$i]['state'] = $member->primary_address->state;
					$constituent[$i]['city'] = $member->primary_address->city;
					$constituent[$i]['county'] = $member->districts->home_county;
					$constituent[$i]['email'] = $member->email->primary_address;
					$constituent[$i]['first_name'] = $member->name->first;
					$constituent[$i]['last_name'] = $member->name->last;

					// $constituent[$i]['coordinates'] = $this->get_geo_coordinates($member->primary_address->street1, $member->primary_address->city, $member->primary_address->state);
					
					$i++;

				}
			}

			return $constituent;

		}

		/* get_geo_coordinates($street, $city, $state)
		 * ---------------------------------------------
		 * return latitude and longitude from google
		 *
		 */
		function get_geo_coordinates($street, $city, $state) {
			
			if(isset($street)) $address = $street + ' ';
			if(isset($city)) $address .= $city + ' ';
			if(isset($state)) $address .= $state;

			$bad = array(
        		" " => "+",
        		"," => "",
        		"?" => "",
        		"&" => "",
        		"=" => ""
    		);

    		$address = str_replace(array_keys($bad), array_values($bad), $address);
		    $data = new SimpleXMLElement(file_get_contents("http://maps.google.com/maps/geo?output=xml&q={$address}"));
		    $coordinates = explode(",", $data->Response->Placemark->Point->coordinates);
		    
		    return array(
		        "latitude" => $coordinates[0],
		        "longitude" => $coordinates[1]
		    );
		}